header{
    width: 1160px;
    margin: 0 auto;
    height: 60px;
    line-height: 60px;
}
header img{
    margin-top: 10px;
}
header div.fr{
    height: 60px;
}
header span{
    display: inline-block;
    margin-left: 20px;
}
header input{
    position: relative;
    height: 35px;
    padding: 0 45px 0 20px;
    border: 1px solid #2577e3;
    box-sizing: border-box;
    border-radius: 5px;
    width: 300px;
    vertical-align: middle;
}
.head{
    background: url(./img/navbg.png) no-repeat;
}
.head nav{
    height: 50px;
    line-height: 50px;
    width: 1160px;
    margin: 0 auto;
}
.head nav li{
    float: left;
    width: 120px;
    text-align: center;
}
.head nav li a{
    color: #fff;
}
.head nav li:hover,.head nav li.active{
    background: #1842b2;
}